The diameter of a penny is about 1.9 space x space 10 to the power of negative 5 end exponent km. It would take about 2.1 space x space 10 to the power of 9 pennies placed side by side to circle the equator once. What is the approximate length of the equator? Show work using scientific notation. Write final answer in standard form.
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Home » Mathematics » The diameter of a penny is about 1.9 space x space 10 to the power of negative 5 end exponent km. It would take about 2.1 space x space 10 to the power of 9 pennies placed side by side to circle the equator once.